RT Journal Article
T1 Análisis de la microfracturación en la Isla Decepción, Antártida Occidental
T1 Micro-fracture patterns in Deception Island, Western Antarctica
A1 González Casado, J. M.
A1 López Martínez, Jerónimo
A1 Giner Robles, J. L.
A1 Durán Valsero, Juan José
A1 Gumiel Martínez, Pablo
AB The micro fracture patterns in Deception Island, an active shield volcano located in (he Bransfield Strait,Antarctic Peninsula region, are studied here for the first time. 143 faults have been measured in five sites along the island, three main trends NE-5W, E-W and NW-SE have been established. The average trend of all the measured faults is N46°E. The faults are several meters long and produce small displacement of the pyroclastic layers (up to some tens of centimetres). All of them have a dip higher than 60°, showing in , general a normal sense of movement. This orientation, subparallel to the Bransfield Basin axis, seems to be related to the caldera formation as well as with the subsequent tectonic deformation. These faults are related to a NW-SE extension, compatible with the tectonic setting of this area. The NW-SE faults show directional movement, then they represent, probably, transfer faults of the former group. A small set of normal faults trending E-W has also been measured
PB Sociedad Geológica de España
YR 1999
FD 1999
LK http://hdl.handle.net/10272/10075
UL http://hdl.handle.net/10272/10075
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026